DERECK CHISORA will try every dirty trick in the book in his bid to cause one of boxing's greatest upsets on Saturday.

The Londoner is a massive underdog for his bout against 6ft 7in WBC world heavyweight champion Vitali Klitschko.

The German-based Ukrainian hasn’t tasted defeat since Lennox Lewis stopped him on cuts back in June, 2003.

But Chisora aims to change all that and will use the kind of dirty tricks he learned in his days as an amateur.

The 28-year-old said: “My trainer in the amateur days, John Oliver, taught me every dirty trick you can think of.

“He told me when you get hurt don’t get ‘macho man’ – just hold and re-group. He taught me a lot about dirty tricks like what to do when you are hurt and when to go on the floor.

“He taught me how to buy time and that is what most trainers don’t tell you these days. They tell you that when you’re hurt you just carry on fighting but that is not the way.

“When you are hurt you take a count, hold and re-group. You try anything you can to buy some vital time.

“I would even take a count against Vitali but it depends where I am. If he hits me and I am close I will hold or wrestle him down or argue with the ref to bide time.

“Some people may frown on such tactics but, in my book, it is simply being smart. It doesn’t mean I am being a punk.”

Chisora has been handed this once- in-a-lifetime chance after losing a controversial points decision to Robert Helenius in a European title challenge last December. It hardly looked likely when he suffered a surprise defeat last July against Tyson Fury but the Helenius fight changed everything.

Chisora explained: “I was deeply in stress mode before the Fury fight and depressed about the contest.

“Wladimir Klitschko had pulled out on me twice and I was down. The British Boxing Board of Control was telling me to fight him or be stripped. I couldn’t get motivated.

“People don’t know a lot about me or understand me because they are judging me on the Fury fight. Klitschko is my biggest mountain but I am going to climb it.”

YOU CAN watch Klitschko v Chisora on Saturday (10pm approx) live and exclusive on BoxNation (Sky Ch. 456/Virgin Ch. 546). Join at www.boxnation.tv

[QUOTE=micky1971]im pickin chisora to ko the bigger and better of the klits.
i think the other klit would have been an easier ko as he has very little punch resistance, as previously shown by corrie sanders etc.
also, in the 10th rnd(i think)or last with haye, he was caught with shot that defin...